Question

The order of decreasing stability of the carbanions
(1) `(CH_(3))_(3)bar(overset(..)(C))` (2) `(CH_(3))_(2)bar(overset(..)(C))H`
(3) `CH_(3)bar(overset(..)(C))H_(2)` (4) `C_(6)H_(5)bar(overset(..)(C))H_(2)` is
A. `1 gt 2 gt 3 gt 4`
B. `4 gt 3 gt 2 gt 1`
C. `4 gt 1 gt 2 gt 3`
D. `1 gt 2 gt 4 gt 3`

Answer 1

Correct Answer - B
`underset("Benzyl carbanion")(C_(6)H_(5)-CH_(2)) gt underset("Ethyl carbanion")(CH_(3)CH_(2))gt`
`underset("Isoproyl carbanion")((CH_(3))_(2)overset(-)overset(..)(C)H) gt underset(underset("Cabanion")("Tert-butyl"))((CH_(3))_(3)overset(-)overset(..)(C))`